Ключевые слова: anonymous, banking, banknote, bitcoin, blockchain, btc, business, cash, coin, computer, concept, crypto, cryptocurrency, currency, decentralized, digital, ecommerce, economy, electronic, electronic board, equipment, exchange, finance, financial, future, gold, golden, investment, litecoin, market, metal, mining, money, net, payment, pc, peer to peer, purchase, riches, sign, technology, trade, value, virtual, wallet, wealth, web,